CN211856417U - Multi-temperature-zone hot baking test device for energetic material product - Google Patents
Multi-temperature-zone hot baking test device for energetic material product Download PDFInfo
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- CN211856417U CN211856417U CN202020613534.2U CN202020613534U CN211856417U CN 211856417 U CN211856417 U CN 211856417U CN 202020613534 U CN202020613534 U CN 202020613534U CN 211856417 U CN211856417 U CN 211856417U
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Abstract
The utility model discloses a multi-temperature-zone heat-curing test device for energetic material product, including explosion-proof room, thermal power output unit, temperature controller, multichannel temperature sensor, detection data transmission ware, data server, remote control operation room, product support, weighing sensor, high frequency developments high pressure sensor. By the aid of the method, integrated design of different hot baking test equipment is realized; taking different heating elements, and carrying out heating matching design aiming at different hot baking test types; in different tests, only heating elements such as a heating belt, a heating film and a quartz lamp need to be replaced, and the loading requirements of different test types of hot baking in the standard can be met. Through the heating thought of this application multi-temperature-zone, simulate the characteristic point temperature of the different positions of product, realized the temperature distribution response characteristic simulation of product, the product state of simulation test product when experiencing hot roast test that can be more true.
Description
Technical Field
The utility model belongs to the technical field of energetic material product is experimental, concretely relates to energetic material product is with hot roast test device of multi-temperature-zone.
Background
Energetic materials including explosives, propellants and the like are widely applied to the fields of aerospace, military and the like. During the production, transportation and use of related products, various accidental factors exist, such as fire accidents caused by road and railway transportation accidents, fuel combustion accidents caused by the process of space launching and the like, so that the energetic materials face thermal safety risks, and the situation of combustion or even explosion can occur in the severe cases. Therefore, it is necessary to evaluate the safety of energetic materials in a hot-baking environment by carrying out relevant tests.
The importance of carrying out the test for evaluating the thermal safety of energetic materials is long recognized by related units at home and abroad, and after years of development, even relevant test standards are formed. Foreign standards include: the army Standard MIL-STD-2105C and the English Standard MHSMP-84-22UC-45June 1984. Domestic standards include: WJ2243-94 Standard of the general war industry Co Ltd- -explosive test method, fast burning test, GJB5309.29-2004 test method for initiating explosive devices part 29: baking and exploding test, etc.
Meanwhile, in order to research the reaction mechanism of the energetic material in the hot baking environment and the like, multiple test devices are independently developed according to various test standards by multiple units such as Beijing university of science and technology, Shaanxi applied physical chemistry research institute, China institute of engineering and physics, and the like, targeted improvement is performed, indexes and functions are advanced, various types of tests are performed by means of the test devices, and the research on the reaction mechanism of the energetic material in the hot baking environment and the like under different materials, heating rates and different structures is researched.
The hot bake test can be classified into a fast bake test and a slow bake test. The test in which the temperature rise rate is generally less than 0.05 ℃/s is called a slow bake test. While the test with a temperature rise rate of more than 1 deg.c/s is called a fast-bake test. The test equipment for realizing the index of the temperature rise rate can be roughly divided into the following modes:
one device is a furnace utilizing good heat exchange properties. And (3) putting the product into a test furnace with a temperature control function, and controlling the temperature rise rate of the furnace temperature so as to complete the hot baking test. The test device can generally complete the slow baking test with small size, small dosage and slow temperature rise rate.
For large-size products, a large-size temperature box can be adopted in the slow baking test, and the principle of the slow baking test is similar to that of a baking furnace. For the fast baking test, a special burning pool is generally built, combustion media such as kerosene and the like are injected into the pool, and the product and the bracket are placed in the middle of the burning pool to finish the fast baking test in a burning state.
The technical means can realize the hot baking test of the product. Through the technical means, the reaction mechanism of the energetic material in the hot baking environment, the adaptability assessment of the product in the hot environment and the like are all researched very meaningfully, but some aspects capable of being improved exist.
The equivalent degree of the hot baking environment simulation needs to be improved;
no matter the oven or the temperature box, the temperature in the closed space is utilized to exchange heat with the product, and then the temperature rise response rate of the product is obtained. The existing stage of baking furnace and temperature box are all single temperature control environment, that is, the product is placed, the posture is adjusted, and the surrounding temperature field environment is the same. Such a laboratory environment may be necessary for characterizing a single material, such as an explosive of a certain nature. However, when a real product, full-size weapon ammunition of different structures and full-size levels are subjected to fire environment and aerodynamic heat environment, the response temperature rise conditions of different parts and different control surfaces at the same position of the product are different. While the reaction of explosives is concerned with the formation of localized hot spots. For explosive products, the part of the temperature distribution which firstly reaches reaction temperature conditions such as explosion, deflagration and the like is the part which is most concerned in product assessment. Therefore, the temperature field simulation technology for temperature response of different parts in the hot baking environment of energetic material products is an important aspect to be improved in the prior art.
Accurate and comprehensive simulation, and insufficient means for providing mechanism analysis;
the burning test can truly simulate the heating temperature field condition of the energetic material in the fire environment, is a real simulation of a thermal accident scene, and can realize an effective means of the energetic material fast baking test. However: 1. the fire test device can only simulate the flame field environment, and other environments are not simulated sufficiently, such as the periphery of the storage area of energetic material products catches fire and the slow baking effect on energetic materials is achieved; 2. the fire test is generally a field fire test due to safety, and is easily influenced by the weather environment in the implementation process; 3. under the environment of burning, the temperature rise range and the speed of the product both present the characteristics of the fast baking test, are not easy to control the temperature rise range and the temperature rise speed, and can not complete the slow baking test. According to research and literature, slow baking tests for high-dose energetic material products are not found at home and abroad. For the integral-grade product, the reaction environment of the energetic material is also influenced by factors such as the structural characteristics of the product, the use environment and the like, and the other aspect needs to be improved by the prior art means.
Process detection techniques need to be improved;
due to the limitation of technical means, the research on the reaction mechanism of the integral grade energetic material product in the hot baking environment is not sufficient at the present stage. For example, the relation between the response temperature of the energetic material and the state of the material in the whole process of the hot baking test, the reaction on characteristic parameters, the change history curve of the parameters along with the temperature and the time, the explosion combustion critical interval and the like are still to be further researched.
Therefore, there is a need to develop a multi-temperature-zone hot baking test device for energetic material products to solve the above problems.
Disclosure of Invention
To solve the problems set forth in the background art described above. The utility model provides a multi-temperature-zone heat roasting test device for energetic material products.
In order to achieve the above object, the utility model provides a following technical scheme:
a multi-temperature-zone hot baking test device for energetic material products comprises:
monitoring and on-site detection equipment for monitoring the state of the energetic material;
a multi-temperature-zone thermal loading terminal; carrying out temperature-division zone heating on the characteristic points of different parts of the energy-containing material by a multi-temperature-zone heat loading terminal;
a thermal power output unit;
a temperature controller; the control signal output end of the temperature controller is connected with the control signal input end of the thermal power output unit, and the thermal power output unit is electrically connected with the multi-temperature-zone thermal loading terminal;
a plurality of temperature sensors; the multi-path temperature sensor is used for detecting the temperature of the multi-temperature zone; the signal output end of the multi-path temperature sensor is connected with the signal input end of the temperature controller;
detecting a data transmitter; the signal output end of the monitoring and on-site detection equipment is connected with the signal input end of the detection data transmitter;
a data server; the signal input end of the data server is respectively connected with the signal output end of the temperature controller and the signal output end of the detection data transmitter;
a remote control operation room; the remote control operation room is in communication connection with the data server.
Specifically, the multi-temperature-zone hot baking test device further comprises:
a product support;
a weighing sensor; the weighing sensor is arranged on the product bracket;
a high frequency dynamic high voltage sensor; the signal output end of the weighing sensor is connected with the signal input end of the high-frequency dynamic high-voltage sensor; the signal output end of the high-frequency dynamic high-voltage sensor is connected with the signal input end of the data server;
a cable length adjuster; the cable length adjuster is connected with the weighing end of the weighing sensor; the energetic material is connected with a cable length adjuster.
Specifically, the multi-temperature-zone heat roasting test device further comprises an explosion-proof room; the energetic material, the monitoring and on-site detection equipment and the multi-temperature-zone heat loading terminal are all arranged in an explosion-proof room.
Preferably, a plurality of cables of the cable length adjuster are arranged through the explosion-proof room, and the end parts of the plurality of cables are respectively connected with a plurality of parts of the energetic material for changing the pose of the energetic material.
Preferably, the multi-temperature zone heat loading terminal is a heating film or a heating belt.
As another preference, the multi-zone heat load termination is a quartz lamp.
Compared with the prior art, the beneficial effects of the utility model are that:
1. by the aid of the method, integrated design of different hot baking test equipment is realized; taking different heating elements, and carrying out heating matching design aiming at different hot baking test types; in different tests, only heating elements such as a heating belt, a heating film and a quartz lamp need to be replaced, and the loading requirements of different test types of hot baking in the standard can be met.
2. By the aid of the method, the product state of the test product can be simulated more truly when the test product is subjected to the hot baking test; the traditional support mounting mode is abandoned, the hoisting mode is adopted, the posture characteristics of the product in the using process can be simulated, and the simulation of the conduction state of the temperature is more real. Meanwhile, the heating thought of the multi-temperature zone is designed by considering the response temperature difference conditions of different parts and different positions of the product in the hot baking environment, the characteristic point temperatures of the different parts of the product are simulated, the temperature distribution response characteristic simulation of the product is realized, and the product state of the product in the hot baking test can be more truly simulated.
3. By the method, the reaction state of the test product in the hot baking environment can be mastered more comprehensively; the method and the device have the advantages that a testing system of multiple physical parameters such as quality, stress, strain, size and appearance is added, a complete multiple physical quantity measuring method is formed, various physical parameters are accurately obtained, the real-time corresponding relation with temperature is obtained, and a complete physical quantity testing means can be provided for product state detection and evaluation by combining with product state detection.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
in the figure: 1-remote control operation room; 2-product support; 3-high frequency dynamic high voltage sensor; 4-a weighing sensor; 5-cable length adjuster; 6-explosion-proof house; 7-a multi-temperature-zone thermal loading terminal; 8-energetic material; 81-a first temperature zone; 82-a second temperature zone; 83-a third temperature zone; 9-multiple temperature sensors; 10-thermal power output unit; 11-a temperature controller; 12-a detection data transmitter; 13-monitoring and on-site testing equipment; 14-a data server; 15-test area field.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a following technical scheme:
as shown in fig. 1, a multi-temperature-zone hot baking test device for energetic material 8 products comprises:
a monitoring and on-site detection device 13 for monitoring the state of the energetic material 8;
a multi-temperature zone heat loading terminal 7; carrying out temperature-division heating on the characteristic points of different parts of the energetic material 8 through a multi-temperature-area heat loading terminal 7; simulating the temperature distribution and the reaction condition of the energetic material in the heat roasting accident scene such as fire and the like through a multi-temperature-zone heat loading terminal;
a thermal power output unit 10;
a temperature controller 11; the control signal output end of the temperature controller 11 is connected with the control signal input end of the thermal power output unit 10, and the thermal power output unit 10 is electrically connected with the multi-temperature-zone thermal loading terminal 7;
a plurality of temperature sensors 9; the multi-path temperature sensor 9 is used for detecting the temperature of the multi-temperature zone; the signal output end of the multi-path temperature sensor 9 is connected with the signal input end of the temperature controller 11;
a detection data transmitter 12; the signal output end of the monitoring and on-site detection equipment 13 is connected with the signal input end of the detection data transmitter 12;
a data server 14; the signal input end of the data server 14 is respectively connected with the signal output end of the temperature controller 11 and the signal output end of the detection data transmitter 12;
a remote control operation room 1; the remote control operation room 1 is connected with the data server 14 in a communication way.
In the embodiment, a product support 2, a high-frequency dynamic high-voltage sensor 3, a weighing sensor 4, a cable length regulator 5, an explosion-proof room 6, a multi-temperature-zone heat loading terminal 7, an energetic material 8, a multi-path temperature sensor 9, a heat power output unit 10, a temperature controller 11, a detection data transmitter 12, a monitoring and field detection device 13 and a data server 14 are all arranged on a test area field 15; the test area site 15 should be selected in the field, away from the area where people move, and has a specific test site with safety guarantee capability. The communication between the devices is completed through communication lines such as optical fiber cables and the like; the monitoring operation area is required to be far away from a test site area, and the device has protection equipment with a composite safety level.
In the embodiment, the multiple temperature sensors are preferably K-type thermocouples; the thermal power output unit is preferably a power regulator, and is selected from Shanghai Stoneley model ST 35B; the temperature controller is preferably an LU-962U type temperature controller of Andon electronics; the detection data transmitter is preferably a PC and gateway products, collects data and transmits the data to the remote control operation room; the monitoring and on-site detection equipment comprises a camera, a fragment collecting device, a dynamic high-voltage measurement device, a quality on-line measurement device and the like.
In some embodiments, the multi-temperature zone heat bake test apparatus further comprises:
a product support 2;
a weighing sensor 4; the weighing sensor 4 is arranged on the product bracket 2;
a high-frequency dynamic high-voltage sensor 3; the signal output end of the weighing sensor 4 is connected with the signal input end of the high-frequency dynamic high-voltage sensor 3; the signal output end of the high-frequency dynamic high-voltage sensor 3 is connected with the signal input end of the data server 14; the high-frequency dynamic high-voltage sensor is used for measuring parameter information such as pressure and the like during reaction of the energetic material;
a cable length adjuster 5; the cable length regulator 5 is connected with the weighing end of the weighing sensor 4; the energetic material 8 is connected with the cable length adjuster 5.
In some embodiments, the multi-temperature zone heat-curing test device further comprises an explosion-proof room 6; the energetic material 8, the monitoring and on-site detection equipment 13 and the multi-temperature-zone heat loading terminal 7 are all arranged in the explosion-proof room 6.
In some embodiments, a plurality of cables of the cable length adjuster 5 are disposed through the explosion-proof room 6, and ends of the plurality of cables are respectively connected to portions of the energetic material 8 for changing the attitude of the energetic material 8. As shown in FIG. 1, the energetic material 8 is arranged obliquely, and the posture of the energetic material in actual use is simulated more truly. By adjusting the posture of the product, the distribution condition of high-temperature air flow in the product under the scene of hot baking accidents is simulated.
Preferably adopt two cables to pass explosion-proof room 6 and hoist the head and the tail of energetic material 8 in this embodiment, and two cables are one long and one short, make energetic material 8 be the slope form setting.
In some embodiments, the multi-temperature zone thermal loading terminal 7 is a heating film or heating tape; the heating film or heating belt is a contact heater. Typical heat flow density is 0.3-0.6w/cm2。
In some embodiments, the multi-temperature zone heat-loading terminal 7 is a quartz lamp, the quartz lamp is a radiant heater, and the heat flow density is 12w/cm2。
The test principle is as follows: and taking the response temperature of the outer surface of the test product as a simulation condition of the test, and applying the load of the hot baking environment by simulating the temperature of the outer surface of the test piece in the real hot baking environment. As shown in fig. 1, the present application is divided into a first temperature zone 81, a second temperature zone 82, and a third temperature zone 83; and at each temperature zone, the independent multi-channel temperature sensor 9, the temperature controller 11 and the thermal power output unit 10 are used for controlling, at any moment in the thermal roasting test process, the temperature controller 11 of each temperature zone reads a preset temperature target value, the independent temperature control of each temperature zone is carried out, the heating output power of each temperature zone is adjusted, and the temperature field distribution condition of different parts on the surface of a product is simulated.
The present application is provided with:
1. integrated design of multi-temperature-zone fast/slow baking test equipment
This patent scheme can realize fast, roast experiment slowly under the different indexes through integrating the design. According to different hot baking test types, the multi-temperature-zone heat loading terminal 7 with different specifications and models can be selected. When the temperature rise range of each temperature zone is between room temperature and 200 ℃, the temperature rise rate is between 0 and 0.05 ℃/s, and the load loading definition of the slow baking test is met, the multi-temperature-zone heat loading terminal 7 in the form of a heating film, a heating belt and the like is adopted; when the temperature rise range of each temperature zone is within the range of 200-1000 ℃ and the temperature rise rate is more than 1 ℃/s, the load loading requirement of the fast baking test is met, and a multi-temperature-zone thermal loading terminal 7 in the form of a quartz lamp and the like is adopted. Aiming at different types of hot baking tests, the multi-path temperature sensor 9, the thermal power output unit 10 and the temperature controller 11 can be used universally, and the hardware universality of different test types is improved. When different types of hot baking tests need to be carried out, only the multi-temperature-zone hot loading terminal 7 needs to be replaced, and function switching can be conveniently and quickly achieved.
2. Accurate simulation of load distribution
In the actual use process, the temperature distribution of the outer surface of the product is different due to the structural characteristics, the position distribution and the posture difference of the energetic material 8 test piece. Different temperature distributions may cause different thermal aggregation effects, resulting in different hot-bake test results, etc. In order to simulate the temperature distribution of a product, the number of temperature control points at different positions of a test piece product and the temperature input condition of each control point are determined through the temperature input condition. During testing, each control point forms an independent control input and output channel, works simultaneously and does not influence each other. Finally, a temperature field for heating the multi-temperature zone is formed.
3. Realization of real-time detection function of mass-temperature change curve
In the test process, in addition to the change of the internal material temperature, the whole quality can also change in the reaction process of the energetic material 8, and the change is a very important physical quantity for judging the reaction state. The method and the device realize the real-time detection function of the mass-temperature change curve. The test product (energetic material 8) is placed in an explosion-proof room 6 and is fixedly arranged on a product support 2 through a lifting appliance, the lifting appliance is provided with a weighing sensor 4, the product quality can be measured in real time in the slow baking test process, and the measured data is transmitted out in real time through a high-frequency dynamic high-voltage sensor 3 so as to record the mass-temperature change curve of the energetic material 8 in the slow baking process.
4 complete monitoring and testing system
In the development process of the hot baking test, parameters such as an experimental field picture, product stress, structural deformation and the like need to be monitored in real time, so that the camera and various field detection devices also need to be placed on the experimental field. The data are transmitted to the remote control operation room 1 device in real time through the data server 14.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an energetic material product is with hot roast test device of multi-temperature-zone which characterized in that includes:
monitoring and on-site detection equipment for monitoring the state of the energetic material;
a multi-temperature-zone thermal loading terminal; carrying out temperature-division zone heating on the characteristic points of different parts of the energy-containing material by a multi-temperature-zone heat loading terminal;
a thermal power output unit;
a temperature controller; the control signal output end of the temperature controller is connected with the control signal input end of the thermal power output unit, and the thermal power output unit is electrically connected with the multi-temperature-zone thermal loading terminal;
a two-way temperature sensor; the two-way temperature sensor is used for detecting the temperature of the multi-temperature zone; the signal output end of the two-way temperature sensor is connected with the signal input end of the temperature controller;
detecting a data transmitter; the signal output end of the monitoring and on-site detection equipment is connected with the signal input end of the detection data transmitter;
a data server; the signal input end of the data server is respectively connected with the signal output end of the temperature controller and the signal output end of the detection data transmitter;
a remote control operation room; the remote control operation room is in communication connection with the data server.
2. The multi-temperature-zone heat-roasting test device for energetic material products of claim 1, wherein the multi-temperature-zone heat-roasting test device further comprises:
a product support;
a weighing sensor; the weighing sensor is arranged on the product bracket;
a high frequency dynamic high voltage sensor; the signal output end of the weighing sensor is connected with the signal input end of the high-frequency dynamic high-voltage sensor; the signal output end of the high-frequency dynamic high-voltage sensor is connected with the signal input end of the data server;
a cable length adjuster; the cable length adjuster is connected with the weighing end of the weighing sensor; the energetic material is connected with a cable length adjuster.
3. The multi-temperature-zone heat-curing test device for energetic material products of claim 2, wherein the multi-temperature-zone heat-curing test device further comprises an explosion-proof room; the energetic material, the monitoring and on-site detection equipment and the multi-temperature-zone heat loading terminal are all arranged in an explosion-proof room.
4. The multi-temperature-zone heat roasting test device for energetic material products as claimed in claim 3, wherein a plurality of cables of the cable length adjuster are arranged through the explosion-proof room, and the end parts of the plurality of cables are respectively connected with a plurality of parts of the energetic material for changing the pose of the energetic material.
5. The multi-temperature-zone heat roasting test device for the energetic material product according to any one of claims 1 to 4, wherein when the thermal reaction condition of the integral energetic material product under the slow roasting accident scene is simulated, the multi-temperature-zone heat loading terminal is a heating film or a heating belt.
6. The multi-temperature-zone heat roasting test device for the energetic material product according to any one of claims 1 to 4, wherein when the thermal reaction condition of the integral energetic material product under a fast roasting accident scene is simulated, the multi-temperature-zone heat loading terminal is a quartz lamp.
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